{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-4ED32-0AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-4ED32-0AE0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-4ED32-0AE0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-4ED32-0AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-4ED32-0AE0, molded case circuit breaker, 3-pole, 20 A rated continuous current, TM210 thermal-magnetic release, 121 kA breaking capacity at 240 V AC.","salesMarkdown":"The Siemens SENTRON 3VA1020-4ED32-0AE0 is a 3-pole molded case circuit breaker (MCCB) rated for 20 A continuous current at 40 °C, with a TM210 thermal-magnetic trip unit — fixed thermal, fixed magnetic, no adjustments on the front. It's a line-protection breaker, not a motor-protection or ground-fault device, so it's the right call for feeder and distribution panels where you need a clean, no-nonsense overcurrent cut. This breaker carries a 121 kA interrupting rating at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. In a 480 V distribution panel with an available fault current of, say, 65 kA, this breaker is comfortably inside its 52.5 kA at 440 V rating — you'd want to confirm the exact system voltage against the table, but the pattern is clear: it's built for high-fault-capacity industrial mains, not light commercial subpanels. At 55 °C it drops to 19.2 A, then 18.8 A at 60 °C, 18.4 A at 65 °C, and 18 A at 70 °C. That means in a hot enclosure — say a non-ventilated panel in a foundry or near a furnace — you still get full 20 A capacity until you cross 50 °C. No one's guessing; the curve is published. The 3VA1020-4ED32-0AE0 measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or screw-mount panel layouts. Front IP40 protection means it's fine inside a closed cabinet; no washdown rating on the front, so keep it behind the gland plate.","metaTitle":"Siemens 3VA1020-4ED32-0AE0 SENTRON MCCB, 20 A, 3-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1020-4ED32-0AE0 molded case circuit breaker, 20 A rated, 3-pole, TM210 release, 121 kA breaking at 240 V. Active production, available to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 690 V":"11.9 kA","at 40 °C":"20 A","at 45 °C":"20 A","at 50 °C":"20 A","at 55 °C":"19.2 A","at 60 °C":"18.8 A","at 65 °C":"18.4 A","at 70 °C":"18 A","Trip indicator":"No","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"4 auxiliary switches HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"20 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"without auxiliaryrelease","Ground fault monitoring version":"Without","Design of the overcurrent release":"TM210","Design of short-circuit protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"No","Adjustable response value current / Ir max.":"20 A","Adjustable response value current / li max.":"320 A","Adjustable response value current / li min.":"320 A","Adjustable response value current / lr min.":"20 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"4","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"100 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=13736&mlfb=3VA1020-4ED32-0AE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-4ED32-0AE0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1020-4ED32-0AE0 at 240 V?","answer":"At 240 V AC, the interrupting rating is 121 kA. At 415 V it's 75.6 kA, at 440 V it's 52.5 kA, and at 690 V it's 11.9 kA."},{"question":"Can I get current pricing and availability for 3VA1020-4ED32-0AE0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quote — submit an RFQ for a firm number."},{"question":"What compliance documentation is available for this breaker?","answer":"As a Siemens SENTRON series MCCB, the 3VA1020-4ED32-0AE0 is manufactured to IEC/EN 60947-2 standards. Documentation including RoHS and REACH compliance declarations, UL/CSA certification data, and the device manual is available through Siemens' support portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-4ED32-0AE0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3VA1020-4ED32-0AE0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}